I'm not sure specifically as I haven't read this exact novel. But generally, a 'scandalous kiss' might be a key event that sets off a chain of events in the story. The 'accidental heir' part could imply that someone becomes an heir unexpectedly, perhaps due to some unforeseen circumstances like a death in the family or a revelation about a will. It might be a story full of drama, family secrets, and of course, a bit of romance starting from that scandalous kiss.
Boruto would probably be really flustered. He might start stuttering and making excuses, like blaming it on the situation. Sarada, on the other hand, would likely be very shy and might avoid looking at Boruto directly for a while.
The main characters could include the person who becomes the accidental heir. This person might be a young and naive character who is suddenly thrust into a world of wealth and power. Then there's the person with whom the scandalous kiss takes place. They could be from a different social class or have some sort of connection to the family's affairs. And there might be an older family member, like an uncle or aunt, who is trying to manipulate the situation to their own advantage.
One day, Boruto and Sarada were in a rush during a mission. As they were both trying to reach for an important scroll at the same time, they bumped into each other and accidentally their lips met. They both immediately pulled away, blushing furiously. Boruto stuttered an apology while Sarada just looked away, her face red as a tomato.
The accidental kiss could break the ice between them. Naruto, being a bit of a dope when it comes to relationships, would finally start to see Hinata as more than a friend. Hinata, who has been pining for Naruto for so long, would be over the moon. Their relationship could then progress from just being comrades to something more romantic. Their friends would also play a role, some might be supportive, while others might be a bit shocked at first.